Cool Start to Fall Looks to Continue into November

Click for larger image

Click for larger image

The 6-10 outlook from the CPC indicates the cool start to Autumn experienced by many in the lower 48 will continue into the beginning of November. The above graphic is valid from Halloween through November 4th.  The CPC is looking at temperatures below normal for much of the nation, with an excellent chance of below normal temperatures in the Upper Great Lakes and northern Plains regions.

Taking a look at the forecast from this morning’s GFS run, we can see the cooler air moving into the U.S.:

Click for larger image

Click for larger image

This forecast is valid the evening of November 1st.  Obviously, a 7-day forecast has some degree of uncertainty, but the pattern of cooler air moving into the U.S. is what’s important to the CPC’s outlook.  These 850 mb temperatures would likely yield surface temperatures topping out in the 40s – below the average temperature for this time of year.  With above-average precipitation projected along the US/Canadian border, one might expect snowfall in this area during the time period.

Just something to think about as we head into the last week of October.

Advertisements
This entry was posted in Forecasting and tagged , , , . Bookmark the permalink.

Leave a Reply

Fill in your details below or click an icon to log in:

WordPress.com Logo

You are commenting using your WordPress.com account. Log Out / Change )

Twitter picture

You are commenting using your Twitter account. Log Out / Change )

Facebook photo

You are commenting using your Facebook account. Log Out / Change )

Google+ photo

You are commenting using your Google+ account. Log Out / Change )

Connecting to %s